Peters



(No Model.)

0. STEWART.

REGISTER FOR TILT-BAGK CHAIRS. No. 392,294. Patented Nov. 6, 1888.

Fig 1 1 WITNESSES: IIVVEIVTOR,

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ATTORNEY.

NY PETERS, Fholo-Lnhngraplvcr. Washingwn. D. p.

UNITED STATES PATENT Orrrcn.

OHARLES STEWART, OF DENVER, COLORADO.

REGISTER FOR TiLT BAGK CHAERS.

iEEPE-CIPICATION forming part. of Letters Patent No. 392,294, dated November 6 1888.

Application filed April 30, 1888.

To all whom it may concern.-

Be it known that 1, CHARLES STEWART, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Registers for Tilt- Back Chairs, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in registering or recording mechanism for use with barber or other chairs adapted to be tilted backward and forward andits objects are to furnish a registering mechanism readily, cheaply, and easily combined with or applied to such a' chair and capable of accurately tallying either the number of times the chair has been tilted back, as for shaving, or the headrest been removed, asin the case of haircut-ting. or both; to which ends it consists in the features more particularly hereinafter described and claimed.

In the drawings are illustrated a chair and register embodying my invention, in which- Figure 1 is a rear elevation of a chair with the register attached; Fig. 2, aside view thereof with the chair tilted backward; Fig. 8, afront View of the register mechanism on an enlarged scale and with the front and the dial-plate removed.

In the figures the referencenumetal 1 indicates the back of the chair, and 2 the head-rest thereon, sliding in ways in the usual manner.

3 is the containingcase of the registering mechanisnnseeured upon a leg-round or other convenient portion of the base of the chair. The registering mechanism therein contained may have any desired number of registeringwheels capable of registering a large number of operations, a units-wheel, 4, and a tenswheel, 5, being here shown as typical thereof, a carrying-pin, 8, on the units-wheel moving the tens-wheel one tooth for every revolution of the former.

Within the case a lever, 6, is pivoted at one of its ends, upon which is secured and by which is carried a spring-pawl, 7, whose free or pawl end is adapted to take in the teeth of the first or units wheel 4. Such lever 6 is normally held in position for the pawl to engage with the units-wheel in position to move the latter one tooth by a spring, 18, any ordinary stop limiting the movement of the lever. Springs Serial No. 272,388. (No model.)

9 are also provided to prevent the registeringwhecls from turning backward. This registering mechanism is actuated by a straight rigid rod, 10, secured upon the upper or tilting portion of the back of the chair and passing at or near its lower end through aperturesin the case 3. In that portion of it normally within the case-that is,within the case when the chair is in an ordinary and untilted position-is a small recess or slot, 11, in which takes the free end of lever 6, and the amount of engagement of the end of lever 6 in the upper edge or shoulderof the slot is so proportioned that when the rod 10 is moved sufficiently to carry the lever 6 far enough to move the wheel at one tooth the engagement ceases and the free end of the lever Grests against a smooth surface of the rod 10 during any further movement thereof, the lever 6 again engaging in the slot upon retraction ofthe rod 10. As before stated,the rod 10 is supported upon the upper or tilting portion of the back; but, as in tilting the angular relation of the back and the rod 10 changes, such support is by guides allowing some play to the rod, to which end pivotal eyebolts 14 may be used.

To allow for the changing angle of rod 10 during the tilting and permit rod 10 to readily move within the case 3 and mai ntain a constant relation to the parts therein, the case is not rigidly attached to the chair, but pivotally, which may be by opposite pivots on the pe riphery of the case taking in bearings or by the arrangement shown, in which an elastic wire or strip, 12, is firmly secured upon the case 3, the free ends of strip 12 being bent upwardly, as at 18, and then secured to the chair, forming an elastic pivotal support for the case, the torsion or flexion of the wire or strip being sufiicient to permit the proper amount of movement to case 3.

At its upper end the rod 10 is pivoted (and preferably by a slotted connection) to a lever, 15, pivoted in turn upon the upper part of the back 1. In position to strike the free end of this lever is a lug, 16, (here shown as attached to an independent strip, 17, attached to the head-rest) though such lug might be attached, it is evident, to the head-rest extension.

In operation, if a person be seated in the chair desiring a shave, the barber tilts the chair backward,that he may more conveniently operate on the subject. This depresses the rod 9 ii'eazee 10,causing it to operate the register and register one. If a hair-cut is desired, he removes the head-rest. In so doing the lug 16 strikes the free end of lever 15, lifting it, Whieh'in turn depresses the rod 10, causing another registration. As the chair is raised to an upright position the rod is drawn upwardly, and the lever 6 is again brought into operative engagement in slot 11 for the next registration.

Having thus described my invention, what I claim is- 1. The combination, with a tilting back chair, of a registering device pivotally secured upon the base of the chair and a rigid onepiece rod secured upon the tilting back and operating the registering device, substantially as set forth.

CH ARLES STEWART.

.Vitnesses:

Z. F. 'Vi iLenn, 'B. L. Pomook. 

